METHOD AND APPARATUS FOR MAKING TUBES OF COMPOSITION TYPE FIBROUS MATERIALS Russian patent published in 2000 - IPC

FIELD: chemical machine engineering, mainly, manufacture of tubes or other elongated products with large or small cross section areas of reinforced plastics or other materials. SUBSTANCE: method comprises steps of impregnating fibrous filler with binder; winding filler onto shaping body; setting polymeric material and providing continuous removal of ready product from shaping body due to imparting reciprocation motion to the whole shaping body or to its separate members; applying torque and axial effort to outer surface of product at side of support due to use of friction forces of members of support engaging with product and performing forced rotation and translation motion. Apparatus has frame for mounting: shaping body, filler stacker, means for polymerization of product, support engaging with product removed from shaping body. Apparatus includes rotor with grooves and drive mechanism for rotating rotor coaxially with shaping body. In grooves of rotor there are shoes with radial and axial guides and mechanisms for engaging-disengaging shoes with product and for providing axial reciprocation motion of shoes. EFFECT: enlarged manufacturing possibilities of method and apparatus, enhanced fluid tightness of ready tubes. 26 cl, 13 dwg